Hi all,
I’ve been using YUNoHost for a few years and very happily - after the first day 
I’d been hosting from scratch for decades and had my own, long checklists of Things To Do. I had to reinstall like 4-5 times that first experience, because I just didn’t understand that I had to keep my grubby meathooks off everything ! But, after I finally got that memo, things have been fine - and fun even. It gets quite boring creating new users and new databases and nginx entries, only to find out that you really don’t like shiny new X application after all. Yunohost makes playing around so painless!
Also, postfix. After the horrors of Sendmail and friends years ago, postfix was a blessing, but I’ve gotten rusty and it takes me forever these days. Yunohost makes it a snap - and smiple aliases too 
My YunoHost server
Matériel: VPS acheté en ligne. VPS from Contabo using contabo hosted debian repos
Version de YunoHost: 11.2.10.3 (stable).
J’ai accès à mon serveur : En - SSH with private key only and non-standard port
Êtes-vous dans un contexte particulier ou avez-vous effectué des modifications particulières sur votre instance ? : oui
Si oui, expliquer:
Yes, as described below, I changed my sources list in an attempt to correct an expired key problem that prevented upgrading. When that failed, instead of reverting, I got the new key and upgraded manually, since I was in the shell already… (mistake part). I then had problems upgrading a couple of packages. Finally realizing I’d screwed up by a) doing things manually and b) making batch changes, I reverted to the original sources list, but there is one package I can’t upgrade: RoundCube.
Description of my issue
So anyhow, a few weeks ago I couldn’t upgrade the system - it kept failing on an expired key. I thought it had something to do with contabo’s own repos, so I changed my source list to debian’s own.
Same problem.
—> 2nd mistake here <-------
I looked into it more and found it was a common problem and got a new key:
apt-key adv --fetch-keys ‘https://packages.sury.org/php/apt.gpg’
Having the same problem, I should have instead reverted to my original sources.list, but I continued and had now done batch changes…
Glitchsoc failed to upgrade and also Roundcube.
I did revert to the original sources.list and performed an ‘apt update’ successfully. I guess it liked the same key.
Some things upgraded fine: Peertube, TTRSS, My_WebApp, Wordpress and Syncthing.
The same two fail though.
Glitchsoc:
error log: https://paste.yunohost.org/raw/osaromaxaq
RoundCube:
error log: https://paste.yunohost.org/raw/harikowita
I know I’m the author of my own misfortune here - I forgot to keep my mitts off the underlying system 
Glitch is now hosed and a 502 - fair enough. It’s experimental and discardable, but I’d like to upgrade RoundCube at some point.
I think I have confused ‘Composer’ with my meddling, but I have zero experience with things like chef, puppet or composer. Also, I may be wrong about that!
Thanks for reading this far! If anyone is familiar and has time, I’d appreciate it. Tbird and evolution both continue fine, of course. For that matter, RoundCube still works too. I just can’t upgrade it, so no big rush.
– gemlog